1991 BT

1991BT, 17469, 1977 KL, 1977KL, 1988 PJ3, 1988PJ3, 1999 JR63, 1999JR63, J77K00L, J88P03J, J91B00T, J99J63R

All data for this body: [vot]

MPC data
Name (number) 1991 BT (17469)
a 2.37146
e 0.08357
i / sin(i) 6.1760 / 0.10758
q 2.17328
Q 2.56964
ω 336.6300
Node 210.9068
m 89.8180
n 0.2699
Epoch 2460800.5
nobs 4513
nopp 27
Years observed 1954-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.371
ep 0.123
sin(ip) 0.116
G 0.150
H 13.400
Mass
D 6.00 0.173
pV 0.258 0.0345
Value
Rotational Period 17.170
Period quality 2
Spectral Class V
Spectral Class Score 28.404
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3711 0.1231 0.1163 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.00 0.173 0.173 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.258 0.0345 0.0345 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.172 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
17.1773 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V Bus VIS Roig 2006Icar..183..411R PHOT
V Bus VIS Solontoi 2012Icar..220..577S SPEC
V DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
V 0.67 Bus VIS Carvano 2010A&A...510A..43C PHOT
V 0.844 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
V V 1.0000 1.0000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Vp Carvano NIR Hardersen 2014Icar..242..269H SPEC